Fix comment formatting in scRNAseq notebook

Author: EricSalomaki

notebooks/scRNAseq_in_Python.ipynb

@@ -1984,7 +1984,7 @@
     "                _df = _enr.results.copy()\n",
     "                _df.insert(0, 'cluster', _cl)\n",
     "                _df['query_size'] = len(_sig_genes)\n",
-    "                # Parse the 'Overlap' string (e.g., "5/45") to compute ratios\n",
+    "                # Parse the 'Overlap' string (e.g., '5/45') to compute ratios\n",
     "                if 'Overlap' in _df.columns:\n",
     "                    _ov = _df['Overlap'].str.split('/')\n",
     "                    _df['count']      = _ov.str[0].astype(int)\n",